4!+5-6+1=24
1: 4 ÷ (1 - 5 ÷ 6)2: 4 ÷ (1 - (5 ÷ 6))3: 6 ÷ (5 ÷ 4 - 1)4: 6 ÷ ((5 ÷ 4) - 1) 谢谢
4 ÷( 1 - 5 ÷ 6 )= 246 ÷( 5 ÷ 4 - 1 )= 24
1: 4 ÷ (1 - 5 ÷ 6)2: 4 ÷ (1 - (5 ÷ 6))3: 6 ÷ (5 ÷ 4 - 1)4: 6 ÷ ((5 ÷ 4) - 1)